What statement best describes the system of sharecropping?

Sharecropping is a system in which an individual rents land from a plantation/farm owner. In return, the individual must give the plantation owner some of his crops as a form of payment. After paying for the land, the person renting the land can keep the excess goods/resources. This system was extremely popular in the United States after the Civil War. This is because many newly freed slaves were skilled in farming and needed a way to survive.

It can provide a social code to protect each citizen's future economical earnings. and then obviously defending the country from invading countries.

The answer is d.  the north had organized schools, whereas the south had few organized schools.